21011414297 has 2 divisors, whose sum is σ = 21011414298. Its totient is φ = 21011414296.

The previous prime is 21011414293. The next prime is 21011414339. The reversal of 21011414297 is 79241411012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20534603401 + 476810896 = 143299^2 + 21836^2 .

It is a cyclic number.

It is not a de Polignac number, because 21011414297 - 2² = 21011414293 is a prime.

It is not a weakly prime, because it can be changed into another prime (21011414293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505707148 + 10505707149.

It is an arithmetic number, because the mean of its divisors is an integer number (10505707149).

Almost surely, 2^21011414297 is an apocalyptic number.

It is an amenable number.

21011414297 is a deficient number, since it is larger than the sum of its proper divisors (1).

21011414297 is an equidigital number, since it uses as much as digits as its factorization.

21011414297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 21011414297 in words is "twenty-one billion, eleven million, four hundred fourteen thousand, two hundred ninety-seven".